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N.o. 625,476. Patented May 23, I899.

G. W. STAFFORD & A. E. KELMEL.

DOUBLE, AfiTiOlLJAOflUABD MACHINE.

(Application filed Sept. 3, 1898.) (No Model.) 2 Sheets-Sheet I.

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No. 625,476. Patented May 23, I899. G. W. STAFFORD &. A. E. KELMEL.

DOUBLE AOTION .JAOOUABD MACHINE.

. (Application mad Sept. 8, 1898.) (No Model.) 2 Sheets-Sheat 2.

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UNITED STATES PATENT OFFICE.

GEORGE \V. STAFFORD AND ALBERT KELMEL, OF PROVIDENCE, RHODE ISLAND,ASSIGNORS TO THE OROMPTON dz KNOWLES LOOM WVORKS, OF WORCESTER,MASSACHUSETTS.

DOUBLE-ACTION JACQUARD-MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,476, dated May 23,1899.

Application filed September 3, 1898- Serial No. 690,164. (No model.)

To all whom it may concern: gridnamely, by occasioning a second extraBeit known thatwe, GEORGE W.STAFFORD beat of the card-cylinder orprismis seand ALBERTE.KELMEL, citizens of the United riouslydisadvantageous. When it is under States, residing at Providence, in thecounty taken to prevent such engagement by cansof Providence and Stateof Rhode Island,have ing such second or extra beat of the card-cyl- 5 5invented certain new and useful Improveinder or prism to take place atthe time when ments in Double-Action J acquard-Machines, the two movinggrids are passing each other of which the following is a specification,refin order to present again to the needles the erence being had thereinto the accompanysame card which was last presented thereto,

IO ing drawings. a slowing down of the operation of the loom Theinvention relates more particularly to below the speed that otherwisewould be at* what are known as double-action or doutainable isnecessitated, inasmuch as such ble acting jacquard-machines. In certainadditional movement of the card-cylinder or forms of machines of thisclass there is em prism renders it necessary to occasion two I 5 ployedfor each neck and tail-cord a double complete beats or movement of thecylinder hook or hooked upright, and the machine has or prism for eachpick of the loom. For intwo moving grids working alternately and stance,if it were desired to run a loom at the both intended to engage with thesaid double rate of one hundred and fifty picks per minhook or hookedupright, but not both at the ute the card-cylinder or prism would be re-20 same time, the one grid ascending while the quired to make threehundred beats against other is descending for one pick, and vice theneedles per minute. By obviating the versa for the next pick, and so on.In connecessity of making the second or extra beat sequence of the factthat the double upright of the card-cylinder or prism for the purposehas'a plurality of grid-hooks, one for engageof preventing improperengagement of the 2 5 ment with each moving grid, it follows thatascending grid with the descending upright when one grid is descending,carrying with and by providing devices to press back the dc it anupright which previously was raised, but scending uprights out of thereach of the aswhich should occupy a lowered position in cending grid,as fully disclosed in our applicathe next shed formation, the disengagedhook tions, Serial Nos. 683,512 and 690,163, afore- 0 on said uprightprojects into the path of movesaid,we are enabled to runaloomhavingadou- 8o ment of the ascending grid, and'hence the ble-actionjacquard-machine applied thereto latter will engage with the said hookof the at a higher rate of speed than we heretofore descending uprightunless such engagement have known to be possible. In our said appli isprovided against, and by arresting the decations just mentioned we havepresented 3 5 scent of such upright and carrying it back and claimedcertain press-back wires or neeinto an upper position will make therebya dies and devices for operating the same in the false indication andcause a mispick. With proper relations with the uprights and mov= theobjects in view of preventing undesired ing grids. I engagement of adescending upright bythe Our present invention consists in an im-' oascending grid and at the same time. obviatproved combination of devicesproviding for 0 in g the necessity of making a second or extra theactuation of the press-back wires or neebeat of the card-cylinder orprism for the dles and in certain provisions for preventing same purposeWe haveinventedcertain mechaccidental disengagement, through the actionanism which is presented in ourapplications of the press-back devices,of the book of a de 5 for United States Letters Patent, filed Junescending upright from the grid with which it 15, 1898, Serial No;683,512, and September is moving. a 3, 1898, Serial Nos. 690,163 and690,165. The The respective features of theinvention will modeheretofore adopted in practice of probe fully explained, with referenceto the acviding against such undesired engagement of companyingdrawings, after which the inven- 50 the descending upright by theascending tion will be particularly pointed out and distinctly definedin the claims at the close of this specification.

Figure 1 of the drawings shows in side elevation certain portions of adouble-action jacquard-machine having certain embodiments of ourinvention applied thereto, only such old parts being shown as arenecessary in order to make clear the relations and mode of operation ofour new devices. Fig. 2 is a view in transverse vertical section of Fig.1, showing certain of the parts which are represented in Fig. 1. 4

The framing and certain fixed parts which are applied thereto aredesignated 1 1 in both views or figures of the drawings, the usualbottom board being designated 2, the double hooks or uprights beingdesignated 3 3, the usual needles cooperating therewith being designated4 4, the springs which are applied to the said needles being designated5 5, and the usual card-cylinder or prism being designated 6.

The two moving griif-frames are designated 7 and 8, respectively, theblades applied thereto being designated, respectively, 71 and S1 andbeing arranged in alternating succession, as shown. The two griff-frames'7 and S are shown as mounted, respectively, on the slide rods 9 and 10,as usual, the said slide-rods being fitted to move in guides 11 11 onthe fixed framework of the machine, all as usual, and the griif-framesbeing in practice actuated through suitable power connections, but notnecessary to be shown or described herein, and thereby being caused tomove simultaneously in opposite directions with respect to each other.

The card-cylinder or prism 6 in practice will be supported and operatedby devices of usual character and construction (not herein shown) andthereby will be caused to make one beat for each shed formation, thisusually corresponding with one pick of the loom to which thejacquard-machine is applied.

The uprights 3 3 are double, as shown, each limb of each of suchuprights having a hook, as 31, for engagement with the actuating-griff.One limb of each upright is designed for cooperation with a griff-blade71, and the other limb thereof is designed for cooperation with theadjacent griif-blade 81, one of such griffblades being designed to beuplifted for one shed formation and the other thereof being designed tobe uplifted for the succeeding shed formation, and so on in regularalternation.

12 12 designate the blades of a stationary grifi, such as sometimes isemployedthat is thus far are common to preexistin g jacquardmachines.

WVith the foregoing devices we combine means whereby as each of themoving griffs in turn descends the disengaged hooks of the uprightswhich are engaged and descending therewith are pressed back, so that thesaid hooks thereof shall be out of the path of the ascending grid.Thereby we prevent the ascending grilf from picking up a descendingupright and raising it at a time when it should be lowered into adepressed position. We use by preference wires, which are arranged toengage with the respective limbs of the uprights 3 3 and are movedtransversely with relation to the griffs at the proper moment in theworking of the jacquard-machine, so as to press the disengaged hooks onthe said uprights out of the path of the ascending gridblades. The saidwires or their equivalents may be variously constructed, arranged, andapplied. To have shown them herein as constituting a set of supplementalneedles, the same being designated 13 13 and having eyes or theequivalent thereof where they engage with the limbs of the uprights 3 3,as at 131 131. When these wires are moved toward the right in thedrawings, they press the limbs of the uprights to the right also,thereby carryinglaterally clear of the ascending grid-blades those hooks31 31 which are not in engagement with either the ascending griff-bladesor the descending grid-blades.

The press-back wires 13 13 are mounted in a movable carrier, hereinshown as consisting of cross-bars 33 33, to which the opposite ends ofthe wires 13 13 are applied, supporting-arms 34 34, by which the saidcross-bars are upheld, and slide-rods 35 35, to which the supportingarms34 34 are attached. With the carrier for the press-back wires iscombined means for reciprocating the said carrier horizontally in propertiming with reference to the movements of the two moving griffs,wherebyeach time the said moving griffs pass each other the carrier andpress-back wires are operated to bear the uprights laterallyin order tomove the hooks of the disengaged descending uprights laterally clear ofthe blades of the ascending griff and thereby prevent the engagement ofsuch hooks withthe said blades:

Preferably we arrange for operating the carrier from one of the movinggriffs or a part connected and moving in unison therewith. Thus we haveshown inthe drawings a cam to engage with a pin or roller, one of thesaid parts being connected to move with one of the moving griffs and theother being connected with the carrier. In the present embodiment of theinvention the cam (herein designated 36) is attached to the slide-rod 9of the grid-frame 7, while the roller which is engaged by the said cam,the same being designated 37 herein, is mounted on a pin 38, which isattached to a slide-rod 35. 361 is a spring surrounding the slide-rod 35between the collar to which pin 38 is applied and one of the bearingsfor said slide-rod 35. The cam 36 is shaped, as shown, to occasion acomplete reciprocation of the said carrier in each complete verticalmovement of the cam up or down. Thereby each time the moving griffs passeach other at an intermediate point in their vertical traverse thecarrier, with the press-back wires mounted therein, is moved toward theright, so as to carry the disengaged hooks of the uprights out of thepath of movement of the ascending grilf-blades.

Each engagement of the cam and roller, this engagement occurring each time the two moving griffs are about to pass each other, occasions amovement of the carrier and pressback wires to the right in thedrawings. N This operates to carry toward the right, also clear of theascending grid-blades, all the hooks which are not in engagement withmoving griff-blades. Those limbs having the hooks thereof engaged withsuch griff-blades will ordinarily bend under the pressure which isexerted against them by the press-back wires or needles, and it is notintended that the hooks of such limbs should become dislodged from thegriif-blades on which they are seated. However, in order to guardagainst the liability of such dislodging we provide in connection withthe uprights springs which shall yield under the pressure of thepress-back wires or needles, therebyrelieving the strain at the hooks,which would tend to dislodge the same from the griff-blades. This iseffected very conveniently by providing the limbs of the uprightsthemselves with springs located between the points at which the hooksare formed or provided on such limbs and the points at which thepress-back devices take bearing against such limbs. The said springs maybe formed variously and are of such strength that so long as the hooksof the uprights are disengaged from the griifs the springs shall notyield under the pressure of the press-back devices, the latter and theuprights operating the same as if the springs were not present. However,a hook being engaged with a moving griff-blade the action of thepress-back devices against the upright occasions a yielding of thespring, thereby relievin g the hook from strain, which might operate todislodge the same, and obviating the tendency to the production offaults in the weaving. In the drawings we have shown the springsproduced at 333 333 just above the hooks which engage with the movinggriffs by flattening the uprights for a portion of their length.

\Ve do not claim,broadly, herein the carrier for the press-back wires orneedles, since the same is made the subject of claim in our applicationfor United States Letters Patent filed September 3, 1898, Serial No.690,163.

\Ve claim as our invention 1. The combination with the double uprights,and the oppositely-moving griffs, of

the press-back wires engaging with the stems of the respective limbs ofsuch uprights and operating to prevent engagement of a descendingupright with an ascending grifi, the carrier for the press-back wires,the spring to move said carrier in one direction, and the cam and pin orroller acting in opposition to the spring to move the carrier in theother direction, substantially as described.

2. The combination with the uprights provided with springs to yieldunder the action of the press-back wires and thereby obviate forceddisengagement of the hook of an upright from the griff wherewith it isengaged, and the oppositely-moving griffs, of the pressback wires toprevent engagement of a descending upright with an ascending grid, thecarrier for the press-back wires, the spring to move said carrier in onedirection, and the cam and pin or roller acting in opposition to thespring to move the carrier in the other direction, substantially asdescribed.

3. The combination with the oppositely moving griffs, of the uprights,and press-back devices to prevent engagement of a descending uprightwith an ascending griff, the said uprights provided with springs toyield under the action of the press-back devices and there by obviateforced disengagement of the hook of an upright from the gritf wherewithit is engaged, substantially as described.

4. The combination with the oppositely moving grifis, of the uprightsformed with springs adjacent to the hooks thereof, and press-backdevices engaging with the said uprights and operating to prevent engage=ment of a descending upright with an ascending griff, the uprightsbending at the spring portions thereof to obviate forced disengagementof the hook of an upright from the grilf wherewith it is engaged,substantially as described.

5. The combination with oppositely-movin g grids, of the uprightsflattened adjacent to the hooks thereof to produce springs, andpress-back devices engaging with the said uprights and operating toprevent engagement of a descending upright with an ascendinggriff, theuprights bending at the flattened spring portions thereof to obviateforced disengagement of the hook of an upright from the griif wherewit-hit is engaged, substantially as described.

6. The upright having a hook for engagement with an actuating-griff, andhaving the stem thereof adjacent to the said hook constructed with anelastic portion of increased flexibility to promote the bending of thestem, substantially as described.

In testimony whereof we affix our signatures in presence of twowitnesses.

' GEORGE W. STAFFORD. ALBERT E. KELMEL. Witnesses:

.E. F. GREENE,

F. E. ROBBINS.

